Nalgene™ Autoclavable Septum Closure, Autoclavable, 38-430 size

Ensure leakproof† performance with Thermo Scientific™ Nalgene™ colored closures — one piece and linerless with integrally molded seal ring. The opaque closures protect contents from UV light when used with opaque bottles.

Order Thermo Scientific™ Nalgene™ Closures for Dropper Bottles to complete the Nalgene Dropper Bottle System. Closures fit dropper bottles Cat. Nos. 312750 and 31275, and are available in multiple colors to help identify reagents.

Ensure leakproof† performance with Thermo Scientific™ Nalgene™ colored closures — one piece and linerless with integrally molded seal ring. The opaque closures protect contents from UV light when used with opaque bottles.

Eliminate spills with Thermo Scientific™ Nalgene™ Colored Polypropylene Closures. These one-piece, linerless closures fit Nalgene™ narrow-mouth 4mL bottles. They feature an integrally molded seal ring and a well-defined closure knurl that makes gripping and capping easy.